baber/WOPTO huggingface dataset:
Patent CA-1277089-C (CA)
Title: Preparation of impact-resistant poly(alkyl)styrene
Inventor: BRONSTERT KLAUS
IPC: C08F279/02
Filed: 1987-03-30
Granted: 1990-11-27
Abstract: ABSTRACT OF THE DISCLOSURE:           The invention relates to a process for preparing an impact-resistant translucent rubber-modified polystyrene and poly(alkyl)-styrene by a two-stage process in which - in the first stage - a batch consisting of styrene,  ring-alkylated styrene, side-chain-alkylated styrene or a mixture thereof and at least one rubbery polymer conforming to the formula P-(SH)X, where x denotes the number of thiol groups per rubber molecule and is an integer from 1 to 5 and P is a polymer of more than 80% conjugated dienes,  and having an average molecular weight  (average  as  measured by gel permeation chromatography) in the range from 20,000 to 200,000 is polymerized thermally or in the presence of free radical initiators,  with stirring in the absence of a solvent for from 3 to 6 hours, to a conversion of from 20 to 40%, based on the monomer, stirring being carried out in such a way that thereafter the flexible phase dispersed in the polystyrene has a median particle diameter of from 0.1 to 0.8 µm, and - in the second stage - the product thus obtained is dispersed, after the addition of a free radical initiator, in an aqueous phase which contains suspending assistants and buffer salts, and polymerization is effected in the course of from 5 to 15 hours to a conversion of from 95 to 99.95%, based on the monomer.  This process makes it possible,  on the one hand,  to prepare translucent impact-resistant polystyrenes or polyalkylstyrenes using rubers based on polybutadiene,  and, on the other hand,  to prepare non-translucent products having improved properties.
Patent CA-1327043-C (CA)
Title: Cyclohexenone derivatives, their preparation and their use for controlling undesirable plant growth
Inventor: KOLASSA DIETER
IPC: A01P13/00
Filed: 1987-03-17
Granted: 1994-02-15
Abstract: ABSTRACT OF THE DISCLOSURE: Cyclohexenone derivatives of the formula            (I), where R1 is alkyl, alkenyl, alkynyl, haloalkyl or haloalkenyl, alkoxyalkyl, unubstituted or substituted cycloalkylmethyl, unsubstituted or sub-stituted benzyl, or is a 5-membered heterocyclic ring which is bonded to the oxygen via a methylene unit, R2 is alkyl, R3 is hydrogen, alkyl-carbonyl, alkenylcarbonyl, unsubstituted or substituted benzoyl, trialkyl-silyl, alkyl- or arylsulfonyl, dialkylphosphono or -thiophosphono, or an organic or inorganic cation, R4 is unsubstituted or substituted alkyl, alkenyl or alkynyl, or unsubstituted or substituted cycloalkyl, and Y is hydrogen, methoxycarbonyl, cyano, alkyl or halogen, and herbicides containing these compounds.
Patent CA-1340072-C (CA)
Inventor: BENN GERALD P
IPC: B01J23/847
Filed: 1987-05-21
Granted: 1998-10-06
Abstract: When making an a amide by hydrolysis of a nitrile in an aqueous medium containing a Raney copper catalyst, the yield  of  amide  can  be  increased and  the  yield  of impurities can be decreased by including vanadium metal in the catalyst.   The vanadium may be present as Raney vanadium, often as an alloy in the Raney copper.
Patent CA-1310351-C (CA)
Title: Continuous stationery
Inventor: VAN VLIET FRED
IPC: B42D15/00
Filed: 1987-05-25
Granted: 1992-11-17
Abstract: ABSTRACT          Continuous stationery to be typed upon or printed with characters by a print unit of a computer or the like having a plurality of blocks extending transversely across the continuous stationery, the blocks having a depth of one eighth of an inch with the blocks spaced at a distance apart of one half of an inch (12.7 milli-metres).
Patent CA-1313284-C (CA)
Title: Silicone emulsion having improved freeze/thaw resistance
Inventor: BAKKEN KATHY L
IPC: C08K5/57
Filed: 1987-06-18
Granted: 1993-01-26
Abstract: SILICONE EMULSION HAVING IMPROVED FREEZE/THAW RESISTANCE                    ABSTRACT           A method of improving the freeze/thaw stability of an anionically stabilized silicone emulsion useful as a sealant, has been developed.  The method comprises the use of nonoxynol-10 in combination with ethylene glycol added to an emulsion comprising 100 parts by weight of an anionically stabilized, hydroxyl endblocked polydiorganosiloxane present as an emulsion of dispersed particles in water, from 0.075 to 0.75 part by weight of dialkyltindicarboxylate, from 0.2 to 5 parts by weight of silane of the formula RSi(OR )3, and from 50 to 200 parts by weight of inert, non-siliceous filler.
Patent CA-1324574-C (CA)
Inventor: CASTEL YVON
IPC: F16L43/00
Filed: 1987-06-26
Granted: 1993-11-23
Abstract: Méthode et dispositif de mise en place à distance d'un raccord coudé. La mise en place est effectuée à partir d'une installation principale située au-dessus de l'installation éloignée. Le dispositif ou cadre supporte le raccord et est maintenu au niveau d'un organe de suspension par un élément de sustentation tel un câble avant d'être éventuellement immobilisé sur l'installation éloignée. L'organe de suspension permet, relativement à l'extrémité du câble, des déplacements du cadre dans un plan horizontal. L'organe support peut se déplacer suivant 3 axes orthogonaux entre eux au moyen de verins et en rotation d'axe vertical. Ces deux organes permettent le positionnement du cadre et du raccord coudé ainsi que la connexion d'une extrémité du raccord avec une première ligne solidaire de l'installation éloignée. Le cadre peut comporter une pince permettant la connexion d'une deuxième extérmité du raccord avec l'extrémité d'une deuxième ligne flexible. L'invention s'applique notamment à la production des effluents pétroliers au large des côtes.
Patent CA-1296728-C (CA)
Title: 1,3,5-trithian derivatives
Inventor: NAGAMINE MASASHI
IPC: A61P9/10
Filed: 1987-07-14
Granted: 1992-03-03
Abstract: ABSTRACT OF THE DISCLOSURE         A 1,3,5-trithiane derivative represented by the general formula (I):                  wherein R1 is a hydrogen atom, R2 is a hydrogen atom or an imi-dazolyl group, or R2, when taken together with R1, forms a double bond between the carbon atom of the trithiane ring and the one to which R3 and R4 are bonded, R3 is an unsubstituted-phenyl group; a substituted-phenyl group having one or two substituents selected from the group consisting of halogen atoms, C1- to C5-alkyl groups, C1- to C5-haloalkyl groups, C3- to C7-cycloalkyl groups, hydroxyl group, C1- to C5- alkoxy groups (whose alkyl portion is optionally substituted by a morpholino group, an N-substituted-piperazino group having a C1- to C3-alkyl group as the substitu-ent, a C3- to C10-alkoxycarbonyl group, a phenyl group or a halo-phenyl group), C3- to C7-cycloalkoxy groups, phenoxy group (whose phenyl portion is optionally substituted by a halogen atom, a C1-to C5-alkyl group or a C1- to C5- alkoxy group), phenylthio group, phenylsulfinyl group, nitro group, N,N-C2- to C8-dialkylamino groups, morpholino group, imidazolyl group, phenyl group, halo-phenyl groups, phenylalkyl groups and pyridyloxy group; a hetero-aromatic group; a polycyclic fused ring group; a substituted -C1-to C5-alkyl group having a phthalimido-1-yl group or a phenoxy-phenyl group as the substituent, or a halostyryl group, or R3, when taken together with R2, forms a C1- to C9-alkylidene group, R4 is a hydrogen atom; a C1- to C8-alkyl group (which is option-ally substituted by a halogen atom, a C2- to C5-alkoxycarbonyl group, a hydroxycarbonyl group, hydroxy group or a C1- to C5-alkoxy group); a C15- to C20-alkenylene group; hydroxycarbonyl group; C2- to C5 alkoxycarbonyl group, an unsubstituted-phenyl group; a substituted-phenyl group having one or two substituents selected from the group consisting of halogen atoms, C1- to C6-alkyl groups, C1- to C9-haloalkyl groups, C1- to C5- alkylthio groups, C2- to C6-alkoxycarbonyl groups and hydroxycarbonyl group; or a halostyryl group, or R3 and R4, when taken together with the carbon atom to which they are bonded, represent a fluoren-9-ylidene group, each of  , m and n is zero or an integer of 1 or 2, and R4 is a group other than phenyl group in the case where R3-is a phenyl group, a pharmaceutical composition containing the same, and a process for producing the same.  The compounds may be useful as anti-arteriosclerotic agents and anti-hyperlipemic agents.
Patent CA-1307869-C (CA)
Title: Water based anti-static coating composition and polymer film coatedtherewith
Inventor: TOUHSAENT ROBERT E
IPC: C08J7/046
Filed: 1987-08-13
Granted: 1992-09-22
Abstract: WATER EASED COSTING COMPOSITION AND     POLYMER FILM COATED THEREWITH                       ABSTRACT          A water based antistatic coating composition comprising: a)  at least one water soluble antistatic agent which is acceptable for food packaging polymer films; b)  at least one water soluble or water dispersible film-forming polymer; and, c)  a solution or dispersion-forming amount of water. When applied to a polymer film substrate, the foregoing antistatic coating composition forms, upon drying, an adherent antistatic coating.
Patent CA-1313566-C (CA)
Title: Magnetic tape transfer printing apparatus
Inventor: SHIRAI TOSHIO
IPC: G11B5/86
Filed: 1987-09-01
Granted: 1993-02-09
Abstract: ABSTRACT OF THE DISCLOSURE          A magnetic tape transfer printing apparatus including a drum mounted for rotation.  A master magnetic tape having information recorded thereon is held in contact with a slave magnetic tape on a portion of the circumferential surface of the drum.  A magnetic transfer bias field is applied to transfer the information from the master magnetic tape onto the slave magnetic tape.  The drum contains a high-permeability magnetic material at least in the circumferential surface.  This is effective to decrease the lateral component of the bias magnetic field and increase the vertical component of the bias magnetic field, thereby minimizing the degree of demagnetization of the master magnetic tape during the transfer printing process.
Patent CA-1294043-C (CA)
Title: Process and an apparatus for the non-contact transmission of information
Inventor: BALLMER HORST
IPC: H04B5/00
Filed: 1987-09-04
Granted: 1992-01-07
Abstract: ABSTRACT OF THE DISCLOSURE           In order to provide non-contact transmission of information between a data medium and a data reader there are at least two electrodes on the surface of the data medium; for purposes of information transmission, these are brought together with the electrodes in the data reader such that they form capacitors through which at least one common circuit is formed from the data medium and the data reader.
Patent CA-1290469-C (CA)
Inventor: TOMODA TOSHIMASA
IPC: G01N23/12
Filed: 1987-11-24
Granted: 1991-10-08
Abstract: ABSTRACT OF THE DISCLOSURE           A measuring apparatus for measuring a physical property of a substance using radiation has a source of radiation for irradiating the substance, a radiation detector which is disposed on the opposite side of the substance from the radiation source, a mask for allowing radiation to enter the radiation detector only along n prescribed pathways, and a signal processing and calculating device for calculating the physical property of the substance based on the radiation which is incident upon the radiation detector.  The mask has n different mask patterns each comprising a plurality of pattern elements which allow the passage of radiation and which can be positioned between the substance and the radiation detector in alignment with the radiation pathways.
Patent CA-1305697-C (CA)
Title: Sulphurised alkaline earth metal hydrocarbyl phenates, their production and use thereof
Inventor: CRAWFORD JOHN
IPC: C10M159/22
Filed: 1987-11-27
Granted: 1992-07-28
Abstract: ABSTRACT OF THE DISCLOSURE   SULPHURISED ALKALINE EARTH METAL HYDROCARBYL PHENATES, THEIR PRODUCTION AND USE THEREOF         A process is provided for preparing additive concentrate suitable for incorporation into a finished lubricating oil composition, the additive concentrate comprising: (a)  a lubricating oil, (b)  a lubricating oil soluble sulphurised alkaline earth metal hydrocarbyl phenate modified by incorporation of from greater than 2 to 35% by weight based on the weight of the composition of either (i) at least one carboxylic acid having the formula:-  wherein R is a C10 to C24 alkyl or alkenyl group and R1 is either hydrogen, a C1 to C4 alkyl group or a -CH2-COOH group, or an anhydride, acid chloride or ester thereof or (ii) a di-or polycarboxylic acid containing from 36 to 100 carbon atoms or an anhydride, acid chloride or ester thereof, the concentrate having a TBN greater than 300.
Patent CA-1332489-C (CA)
Title: Heterogenous copolymer of vinylidene and chlorotrifluoroethylene, a process for the preparation of said heterogenous copolymer
Inventor: BLAISE JEAN
IPC: C08F259/08
Filed: 1988-01-29
Granted: 1994-10-11
Abstract: Heterogeneous copolymers of vinylidene fluoride and chlorotrifluoroethylene are obtained by copolymerization in suspension or emulsion in two stages. In a first stage the vinylidene fluoride and the chlorotrifluroethylene are copolymerized, and in a second stage the polymerization of vinylidene fluoride is continued after discontinuance of the introduction of chlorotrifluoroethylene.
Patent CA-1292012-C (CA)
Title: Process for making and isolating (r)-2-hydroxy-4- phenylbutyric acid and esters
Inventor: FLYNN GARY A
IPC: C07C59/48
Filed: 1988-02-22
Granted: 1991-11-12
Abstract: ABSTRACT      Disclosed herein is a novel compound, (L)-menthyl 2-oxo-4-phenylbutyrate, and an improved process for making and isolating a substantially pure compound of the structural formula:       wherein Y is hydrogen or (L)-menthyl the improvement which comprises: a) stereoselectively reducing (L)-menthyl 2-oxo-4-phenylbutyrate by contacting said compound with with S-Alpine borane, b) stereoselectively isolating (L)-menthyl-(R)-2-hydroxy-4-phenylbutyrate by crystallization, and optionally hydrolyzing the so obtained ester;     and further comprises optionally esterifying the so obtained acid by contacting said acid with a C1-C6 alkanol in the presence of acid.
Patent CA-1332627-C (CA)
Title: Jitter control in digital communications links
Inventor: CANTONI ANTONIO
IPC: H04L25/20
Filed: 1988-03-17
Granted: 1994-10-18
Abstract: ABSTRACT        A method and apparatus for transmitting digital signals in frames between nodes in a network, each node having a local clock and means for extracting a clock from the incoming signals. Each node also has an elastic buffer into which the signals are written at the extracted clock rate and from which the signals are read at the local clock rate. Stuffing bits are added or subtracted in a stuffing field in order to ensure that writing of signals of a frame takes place prior to reading of the signals of the frame.  The frame also includes a stuffing control code which determines the maximum and minimum values for the stuffing control field.
Patent CA-1325999-C (CA)
Inventor: KAWAMURA KEITA
IPC: B01D53/60
Filed: 1988-05-26
Granted: 1994-01-11
Abstract: ABSTRACT         A process of purifying an exhaust gas containing at least one of SOx and Nox ingredients which comprises: admixing such gas with ammonia; irradiating said mixture with ionizing radiation or ultraviolet light, whereby producing a resultant gas containing fine particulate products; passing said resultant gas through an electrostatic precipitator at a gas flow speed of about 1 to 3 m/sec. thereby causing said fine particulate products to form coalesced particles; removing a major part of said coalesced particles from said electrostatic precipitator; passing gas, containing particles, discharged from said electrostatic precipitator into a mechanical filter at a speed of about 0.3 to 2 m/min., whereby reacting residual non-reacted ingredients with residual ammonia to produce additional particles; removing particles from the gas by said filter; and releasing the gas, containing a reduced particle content, from said mechanical filter to the atmosphere.  If the solid particles are to be collected solely by a mechanical filter such as a bag filter, however, when the quantity is large, a large filtering area is needed since filtering resistance increases in a short period of time due to the adhesivity of the particles or their tendency to grow while condensing.  In the present invention, since a mechanical filter is provided downstream of an electrostatic precipitator, a high gas flow speed of 1 - 3 m/sec can be applied and the filter resistance of the mechanical filter will not increase in a short period of time due to the small quanity of particles supplied therein, thereby avoiding the need for a large filtering area.
Patent CA-1317535-C (CA)
Title: Assay of sequences using amplified genes
Inventor: DATTAGUPTA NANIBUSHAN
IPC: C12Q1/6844
Filed: 1988-06-08
Granted: 1993-05-11
Abstract: ABSTRACT OF THE DISCLOSURE           A method for amplifying specific target nucleic acid sequences in a sample, the method comprising (a) contacting under hybridization conditions (i) two different immobilized or immobilizable primer nucleic acids, with (ii) a test sample containing target nucleic acid  sequences, (b) contacting the resultant product of step (a) with an extender enzyme and at least one nucleic acid residue under conditions to elongate the resultant hybridized primer nucleic acids, and (c) denaturing the product of step (b), to produce immobilized target nucleic acid sequences, and (d) repeating at least once a cycle of steps (a), (b) and (c) with the product of step (c) of the previous cycle being used in place of (a)(ii).  The above described method can be used to detect specific target nucleic acid sequences by using a test sample suspected of containing target nucleic acid sequences and determining if an amplified sequence is present.
Patent CA-1304425-C (CA)
Title: Procede d'extraction et de mise en vitesse d'objets plats
Inventor: DELBE EMMANUEL
IPC: B65H5/10
Filed: 1988-06-29
Granted: 1992-06-30
Abstract: Titre : Procédé d'extraction et de mise en vites se d'objets plats Procédé d'extraction et de mise en vitesse d'objets plats tels que des plis se présentant dans la position de sortie d'une tête de dépilage, à destination d'une machine utilisatrice, par l'emploi d'une pince saisissant les plis un à un et de différents capteurs (7), tels que des cellules photo-électriques, permettant de déceler la présence d'un pli dans la position de sortie de la tête de dépilage, ou dans le champ de la pince, ou servant a signaler que la pince se trouve dans une position d'attente ou dans une position de fin de course, caractérisé en ce qu'il comprend essentiellement les étapes suivantes : - conduite de la pince dans une position d'attente, - lorsque la présence d'un pli est décelée dans la position de sortie de la tête de dépilage, mise en marche du chariot vers la position de sortie de la tête de dépilage, - lorsque la présence du pli est décelée dans le champ de la pince, serrage de la pince et mise en marche du chariot vers la machine utilisatrice, - des que la présence du pli n'est plus décelée dans la position de sortie de la tête de dépilage, desserrage de la pince qui relâche le pli, - arrêt du chariot et retour de celui-ci dans la position d'attente.
Patent CA-1329706-C (CA)
Title: Herbicidal agents
Inventor: SCHUMACHER HANS
IPC: A01N47/36
Filed: 1988-07-08
Granted: 1994-05-24
Abstract: Abstract of the disclosure Herbicidal agents The present invention relates to herbicidal agents which contain an effective amount of a compound of the for-mula I, its salt or its stereoisomers             (I) wherein R1  = a heterocyclic radical of the formulae   ,      ,       or  , R2  = H, (subst.) alkyl or (C2-C4)alkynyl, R3  = Cl or CF3, R4  = H or Cl and R5  = F or Cl, in combination with a compound of the formula II or its salt   (II) wherein R6  = a radical of the formula  , (subst.) phenyl or (subst.) thienyl, R7 and R8 = alkyl or alkoxy, R9  = alkyl and X   = CH or N.
Patent CA-1324116-C (CA)
Inventor: GRAUF KARL L
IPC: B65D5/52
Filed: 1988-08-10
Granted: 1993-11-09
Abstract: Abstract of the Disclosure A display carton for use with articles which cannot independently support themselves in an upright position. The carton is formed so that the back panel forms an angle greater than 90° with the bottom panel to allow such articles to lean back against the back panel. The front panel may also be at the same angle. The bottom is formed from flaps foldably attached to the front,  side and bottom panels which function to automatically form the bottom panel when a carton sleeve is opened into carton shape.
Patent CA-1336343-C (CA)
Inventor: GERDAU THOMAS
IPC: C04B35/00
Filed: 1988-10-05
Granted: 1995-07-18
Abstract: The invention relates to novel polymeric hydridosilazanes, processes for their preparation and their use for the pre-paration of ceramic material containing silicon nitride. To prepare the polymeric hydridosilazanes, polymeric hydridochlorosilazanes are reacted with NH3.  To prepare the ceramic material containing silicon nitride, the poly-meric hydridosilazanes are then pyrolysed.
Patent CA-1322244-C (CA)
Inventor: CRONIN DAVID V
IPC: G11B5/596
Filed: 1988-10-11
Granted: 1993-09-14
Abstract: Abstract of the Disclosure A magnetic data storage system for use with a double sided disk in which a prerecorded pattern of opaque optical lines is used to define the tracks in which magnetic data is to be stored.  A separate optical system including an illumination source and a photosensitive detector is provided on a read/write assembly for each side of the disk.  Each detector is designed also to serve as a reference grating.  The illumination source is designed to image the prerecorded pattern of optical lines on the reference grating as an indication of the alignment of the read/write head of the assembly and a desired data track and any misalignment of the head and track generates a servo signal.  The detector uses four separate photocells interleaved in a prescribed fashion to form a quadrature detector that is adjustable to compensate for various non-uniformities.  one form of illumination source uses a surface-emitting light emitting diode and optics for forming a multiple beam source.
Patent CA-1301198-C (CA)
Title: Manufacture of disulfides
Inventor: PRESNALL STEWART H
IPC: C07C319/24
Filed: 1988-10-18
Granted: 1992-05-19
Abstract: Abstract of the Disclosure A method for preparing disulfides comprising combining at least one mercaptan of the general formula R-SH wherein R is selected from the group consisting of an alkyl, aryl, aralkyl, cycloalkyl, arylcycloalkyl radical, and mixtures thereof; at least one oxidizing agent; at least one aqueous base; at least one oxygen containing water miscible organic compound; and at least one divalent transition metal carboxylic acid salt and/or divalent transition metal sulfate salt.
Patent CA-1298185-C (CA)
Inventor: WHITE WARREN D
IPC: C08F299/02
Filed: 1988-10-26
Granted: 1992-03-31
Abstract: ABSTRACT OF THE DISCLOSURE       Damaged composites are repaired by use of a rubber modified vinyl ester resin composition as either an adhesive for bonding metal or cured composite to the area surrounding the damaged area or by placing an uncured reinforcing material saturated with a rubber modified vinyl ester resin composition over the prepared damaged zone and curing in place.
Patent CA-1311688-C (CA)
Title: Lait auto-bronzant prolongateur de bronzage
Inventor: ROBERT PIERRE
IPC: A61K8/35
Filed: 1988-11-01
Granted: 1992-12-22
Abstract: L'invention a pour objet un lait auto-bronzant prolongateur de bronzage destiné à être utilisé par toute personne après exposition au soleil, pour, d'une part, hydrater la peau et diminuer l'inflammation causée par l'exposition au soleil et, d'autre part, accélérer l'obtention d'un beau bronzage en colorant de façon artificielle la peau. Ce lait qui comprend au moins un agent hydratant tel que l'acide pyrrolidone carboxylique en mélange avec au moins un agent capable de calmer l'inflammation tel que l'allantoîne, dans un véhicule dermatologiquement acceptable du type émulsion huile dans l'eau, est caractérisé en ce qu'il comprend en outre un agent auto-bronzant dans sa formulation. Cet agent autobronzant est de préférence la dihydroxyacétone.